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Open AccessArticle

Enhanced Thermoelectric Performance of Cu2SnSe3-Based Composites Incorporated with Nano-Fullerene

School of Materials Science and Engineering, University of Jinan, 336 Nan-Xinzhuang West Road, Jinan 250022, China
Author to whom correspondence should be addressed.
Academic Editor: Shankar M.L. Sastry
Materials 2016, 9(8), 629;
Received: 29 June 2016 / Revised: 16 July 2016 / Accepted: 21 July 2016 / Published: 28 July 2016
(This article belongs to the Special Issue Physical Metallurgy of High Performance Alloys)
In this study, nano-sized fullerene C60 powder was sufficiently mixed with Cu2SnSe3 powder by ball milling method, and the C60/Cu2SnSe3 composites were prepared by spark plasma sintering technology. The fullerene C60 distributed uniformly in the form of clusters, and the average cluster size was less than 1 μm. With increasing C60 content, the electrical conductivity of C60/Cu2SnSe3 composites decreased, while the Seebeck coefficient was enhanced. The thermal conductivity of composites decreased significantly, which resulted from the phonon scattering by the C60 clusters located on the grain boundaries of the Cu2SnSe3 matrix. The highest figure of merit ZT of 0.38 was achieved at 700 K for 0.8% C60/Cu2SnSe3 composite. View Full-Text
Keywords: thermoelectric alloy; composites; Cu2SnSe3; C60 thermoelectric alloy; composites; Cu2SnSe3; C60
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Zhao, D.; Ning, J.; Wu, D.; Zuo, M. Enhanced Thermoelectric Performance of Cu2SnSe3-Based Composites Incorporated with Nano-Fullerene. Materials 2016, 9, 629.

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